yshop-crm through 2.1.3 fails to enforce authorization on the sendSms and sendMail endpoints in CrmCustomerController, allowing any authenticated back-office user to send SMS and email to arbitrary customers. Attackers can invoke POST /admin-api/crm/customer/send-sms and POST /admin-api/crm/customer/send-mail with arbitrary customerIds, templateCode, and templateParams to deliver unauthorized messages through the organization's SMS and email channels.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 7
https://github.com/LinYuanyi1/cve-request-poc/blob/master/yshop-crm/C01_crm_cus…
disclosure@vulncheck.com
https://github.com/LinYuanyi1/cve-request-poc/blob/master/yshop-crm/C02_crm_cus…
disclosure@vulncheck.com
https://github.com/guchengwuyue/yshop-crm
disclosure@vulncheck.com
https://github.com/guchengwuyue/yshop-crm/blob/5f5810a0e1e4ab0828523ec299bf973c…
disclosure@vulncheck.com
https://github.com/guchengwuyue/yshop-crm/blob/5f5810a0e1e4ab0828523ec299bf973c…
disclosure@vulncheck.com
https://github.com/guchengwuyue/yshop-crm/blob/5f5810a0e1e4ab0828523ec299bf973c…
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/yshop-crm-through-2.1.3-missing-authorizat…
disclosure@vulncheck.com